Abstract: A filter element includes a bottom open end joined to a center tube opposite the top open end. The bottom open end defines a radially outer surface and a radially inner surface that is in communication with the central reservoir of the filter element. A first locking feature is disposed proximate to the bottom open end. The locking feature includes an entrance slot that is disposed on the radially inner surface of the center tube extending axially from the bottom open end. A similar or identical second locking feature is disposed proximate to the top open end.

Abstract: A filter element includes a bottom open end joined to a center tube opposite the top open end. The bottom open end defines a radially outer surface and a radially inner surface that is in communication with the central reservoir of the filter element. A locking feature is disposed proximate to the bottom open end. The locking feature includes an entrance slot that is disposed on the radially inner surface of the center tube extending axially from the bottom open end.

Abstract: A filter for a water cooler includes a housing having a surface and a cavity with cavity ports. The filter end is adapted to be received in the housing. The filter end includes a cylindrical base having a surface and a neck extending from the surface. The neck has filter ports and a side surface. The side surface has oppositely directed axially extending elongated protrusions configured to be received in channels in the housing. The base surface includes a complex set of protrusions which are adapted to be received in a similarly configured set of recesses in the housing surface. The protrusions/recesses may take the form of letters, numbers or symbols. The filter end is be fully seated in the housing in bayonet-type fashion to connect the filter ports and the housing ports o permit water to flow through the filter from the water supply to the water cooler.

Abstract: Disclosed herein is a filter having a housing having first and second end surfaces and interior and exterior surfaces, a membrane disposed within the tubular housing, a first end cap sealed to the first end surface of the tubular housing and the first end surface of the membrane; a second end cap sealed to the second end surface of the tubular housing and the second end surface of the membrane; and a fluid channel formed in the interior surface of the housing in a helical pattern. The helical pattern has a helical pitch in an axial direction of the housing of less than or equal to about 60 mm.

Abstract: A filtration system with a rotating core driving thimble opening and closing water passage, including: a casing, a filter and a connector, wherein the filter and the connector are connected and fixed in the casing; the filter includes a filter element body and a carbon rod; the connector includes a connector core, a water intake thimble, a water outtake thimble; the connector core is provided with a water inlet boss on which a first arc groove is provided, and a water outlet boss on which a second arc groove is provided; the water intake thimble and the water outtake thimble are lifted and falls through the rotation of the connector core, so that a water intake passage and a water outtake passage are opened and closed.

Abstract: An easily serviceable liquid filter assembly having a housing with a drain to provide draining of fluid (e.g., liquid) from the housing. The filter assembly has a fluid inlet to receive dirty fluid into the housing, a fluid outlet to expel filtered fluid from the housing, and a drain, when open, to expel unfiltered (dirty) fluid from the housing. By removing a cover from the housing, the filter element opens the drain so that all fluid in the housing can be directly collected or can flow into the oil pan to be collected with the fluid present in the pan. All fluid, now in the drain pan, can be drained and collected in a disposable container such as a plastic pouch, which can be recycled. The filter element can be removed from the housing via the removed cover.

Abstract: A variable configuration modular fluid filter assembly includes one or more discrete filter housing assemblies that each include a mount body constructed to support a cap and a filter sleeve. A plurality of bosses are formed on radially outward facing sides of the mount body and are each discretely selectable to fluidly connect the discrete mount body to one another to provide a desired flow characteristic of the discrete filter assembly arrangement. Preferably, each discrete filter assembly includes a seal arrangement disposed between the cap and the mount body and which orients the sealing interface therebetween at an acute angle relative to an axis of rotation of the cap relative to the mount body when the cap and mount body are engaged with one another.

Abstract: Some embodiments provide a water filtration system that is fluidly coupled to a water feed line and/or a water supply line and is designed to filter contaminates from the water supply. The water filtration system includes an outer housing, a front cover, a rear cover, a pump, a reverse osmosis (RO) element, a pre-filter cartridge, a post-filter cartridge, a permeate flush tank, a RO manifold, and a sensor manifold. The water filtration system further includes a pump and at least one solenoid. When assembled, a RO housing, a pre-filter housing, and a post-filter housing surround the RO element, the pre-filter cartridge, and the post-filter cartridge, respectively. The filter cartridges hold replaceable filtration media in an interior cavity and contaminants and other impurities are removed as water flows through the filtration media of the filter cartridges.

Abstract: A fluid filter device with a housing defining a cavity, the housing including a fluid inlet and a fluid outlet, a filter unit including a filter substrate and arranged within the cavity such that the filter unit and the housing define, within the cavity, a first chamber in fluid communication with the fluid inlet and a second chamber in fluid communication with the fluid outlet. The filter unit is movable relative to the housing between a first position and a second position such that in the first position, the first chamber is in fluid communication with the second chamber through the filter substrate, and in the second position, the inlet is in fluid communication with the outlet through a bypass line.

Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.

Abstract: A filter assembly comprises a filter housing defining an internal volume, a filter element positioned within the internal volume, and a gasket retainer. An outer edge of the gasket retainer is coupled to a top end of the filter housing, and an inner rim thereof forms a gasket retainer ledge. The filter assembly further comprises a retainer loop comprising a retainer loop main body. A plurality of retainer arms extend axially from the retainer loop main body towards the gasket retainer. Each of the plurality of retainer arms comprise a retainer arm ledge extending radially towards the retainer loop main body and snap-fit to the gasket retainer ledge. A retainer loop sidewall extends from the main body away from the gasket retainer. An outer surface of the retainer loop sidewall defines a curvature. A sealing member is removably positioned around the outer surface of the retainer loop sidewall.

Abstract: A filter assembly includes a filter element, and a mount having at least one port, each of the filter element and mount having inter-engaging connection formations where the filter element and mount can be detachably connected to one another, with the mount defining a flow path for fluid to flow between the port and the filter element. The mount includes a valve with a valve member which can move between an open position and a closed position. One of the filter element and the mount has at least one lug and the other of the filter element and mount has a ramp surface, the lug engaging the ramp surface when the filter element and mount are brought together along an axis and a cam action between the lug and the ramp surface causes axial movement of the valve member when the filter element is then rotated relative to the mount.

Abstract: The present disclosure relates, according to some embodiments, to systems, apparatus, and methods for fluid filtration (e.g., water) with a ceramic membrane having a seal. For example, the present disclosure relates, in some embodiments, to a cross-flow fluid filtration assembly comprising (a) an elongate ceramic membrane filter having a first filter end, a second filter end, at least one filter side, and at least one interior channel spanning the length of the filter, (b) a first filtration seal gasket fixed to the first filter end forming a fluid-tight seal therebetween, and (c) a second filtration seal gasket fixed to the second filter end forming a fluid-tight seal therebetween. The present disclosure also relates to a cross-flow fluid filtration module comprising a fluid path defined by a contaminated media inlet chamber, a fluid filtration assembly positioned in a permeate chamber, and a concentrate chamber.

Abstract: A customizable multi-stage fluid treatment assembly typically includes a connector, a plurality of cartridges, and a cap. The plurality of cartridges have a treatment medium spaced within an interior volume of the individual cartridges, between the ends thereof. The ends of the plurality of cartridges are configured to receive a fluid, bring the fluid into operative contact with the treatment medium, and dispense the fluid from the opposing end of the cartridge. The connector is coupled with one end of the plurality of cartridges and has an inlet and an outlet for receiving and dispensing the fluid to and from an appliance. The cap is coupled with the other end of the plurality of cartridges, enclosing the fluid treatment assembly, which is configured to be received in a cavity of an appliance. The cartridges of the plurality of cartridges may be individually replaced with cartridges to meet customized needs.

Abstract: Liquid separator apparatus comprises a first screen assembly for screening fluids from slurry. The first screen assembly defines an enclosure. The apparatus also comprises a second screen assembly for screening fluids from the slurry and being disposed spaced-apart within the enclosure of the first screen assembly. A slurry pathway is defined between the first screen assembly and the second screen assembly. A first separated fluids stream pathway is defined outwardly of the first screen assembly, and a second separated fluids stream pathway is defined inwardly of the second screen assembly. An auger is positioned between the first screen assembly and the second screen assembly for advancing the slurry upwardly through the slurry pathway. A drive motor operates to turn the auger.

Abstract: A filter device may include a filter housing cup, a filter head, and a ring filter element arranged in the filter housing cup. The ring filter element may include an upper end plate on which at least two radially outward projecting bayonet wings are arranged which interact with a plurality of recesses disposed in the filter housing cup. The plurality of recesses may respectively define an undercut contour and a first end position of an associated bayonet wing guided therein. At least two driving elements may be arranged on the upper end plate. At least two ramps and two stops may be arranged on the filter head such that, when fitting the filter device, the at least two driving elements slide on the at least two ramps to the two stops and press the at least two bayonet wings into the undercut contour of an associated recess.

Abstract: A spin-on filter for a filtering device for fluid, the spin-on filter including: a housing pot, in which at least one filter element is arranged; a connecting body, which is arranged at an end face of the housing pot, the connecting body having a central opening; and a coupling device including a filter-side coupling part configured for detachably coupling the spin-on filter to a filter head of the filtering device; wherein the coupling part is arranged on the central opening; wherein the filter-side coupling part is configured to detachably couple to a connector of a head-side coupling part of the filter head by way of a plug-in and/or rotational movement with respect to a coupling axis; and wherein the filter-side coupling part includes a plurality of coupling ribs which are distributed in the circumferential direction of a coupling axis on the central opening and projecting radially inwardly.

Abstract: Described herein is a method of removing mercury from an aqueous solution comprising: providing an aqueous solution comprising chloramine and mercury; and contacting the aqueous solution with a medium comprising a porous carbon substrate comprising at least 1.5% by mass of sulfur.

Abstract: An assembly for sensing flow material in a passage of a member is disclosed. The assembly has a housing, a communication device disposed at least partially in the housing, and a controller disposed at least partially in the housing. The assembly also has a sensor array disposed at least partially in the housing, and an external-surface-mounting attachment portion configured to non-intrusively attach the assembly to a surface. The sensor array includes a pressure sensor, a density sensor, a corrosion sensor, and a vibration sensor. The controller controls the communication device to transmit sensed data collected by the sensor array at a frequency of between about one transmission per second and about fifty transmissions per second.

Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. Unique features for interface between the enclosed filter cartridge and the shell are provided. Also provided are unique features for interaction between the cartridge and a filter head, in use.

Abstract: A filter has a filter cup, a filter element arranged in the filter cup, and a filter head. Filter cup and filter head are connected by a releasable bayonet-type connection with interacting locking parts connected to filter cup and filter head. A locking nose on the first locking part and a recess on the second locking part interact. The recess has an insertion/removal region for joining and separating locking nose and recess and also a locking region for hooking the locking nose. A spring between filter cup and filter head generates pretension on the locking nose in the recess. The recess has a locking shoulder with a shoulder tip between locking region and insertion/removal region. The locking nose has a locking tip. When locking tip and shoulder tip contact each other, the locking nose is forced by the spring into the locking region or into the insertion/removal region.

Abstract: The following disclosure relates to a flow rate measuring device and method capable of correcting a gradient. More particularly, the following disclosure relates to a flow rate measuring device and method capable of correcting a gradient that may measure a flow rate having a minimized measurement error by including a sensor unit provided on a bottom surface of an inner portion of a fuel tank in order to accurately measure a flow rate value remaining in the fuel tank to obtain distance information between the bottom surface of the fuel tank and an oil surface and gradient information of the fuel tank itself.

Abstract: The invention relates to a filtering device for filtering running water from a pressurized water source, wherein two or more water treatment compartments or modules are arranged within a housing along a water flow path, each of the compartments or modules comprising at least one water treatment element or medium for performing a defined water treatment function.

Abstract: A liquid filter including a filter housing, a ring filter insert and a cover. The housing bottom contains an outlet for emptying the housing when the filter insert is removed. The filter insert includes a filter material body surrounded by front panels. A blocking element for the outlet is arranged on one front panel, and positioning elements are provided on the filter insert and on the housing. The positioning elements include an inclined plane and an engaging radially protruding nose. The inclined plane is arranged on one and the nose is arranged on the other of the filter housing part and the ring filter insert. When the ring filter insert is rotated relative to the filter housing, the inclined plane and the nose are moved in relation to each other such that they slide along each other and engage the blocking element with the outlet.

Abstract: A filter cartridge is disclosed comprising a housing comprising a terminal end, a connective end, and a longitudinal axis, the connective end comprising a fluid inlet and a fluid outlet. The filter cartridge further comprises a filtration media disposed within the housing between the terminal end and the connective end and fluidly connecting the fluid inlet to the fluid outlet. One of the fluid inlet or the fluid outlet comprises one or more anti-drip capillary channels, the transverse cross-section of the anti-drip capillary channels being elongate in at least one direction.

Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. Unique features for interface between the enclosed filter cartridge and the shell are provided. Also provided are unique features for interaction between the cartridge and a filter head, in use.

Abstract: A filter assembly, a filter cartridge and method of filter fluid are provided. The filter assembly includes a filter base, a filter housing and a filter cartridge within the housing. The filter cartridge strips water from the dirty fluid flowing through the assembly. The filter cartridge defines a pair of fluid flow paths extending through a central cavity thereof. The fluid flow paths carry and keep separated a flow of cleaned fluid after it passes through filter media of the cartridge as well as the water that has been stripped from the dirty fluid flow.

Abstract: A canister filter system includes a base, a canister attachable to the base, and a fluid separator filter having filter media positioned inside the canister. A drain engages and forms a seal with the filter in a closed position. In an open position, the drain allows fluid to be removed from the canister. The structure of the filter is such that the filter may more efficiently separate fluids.

Abstract: A shower filter between a downwardly slanting shower arm and a shower head, including a base, and a vertical housing with filler material. The base has an input chamber for receiving water from the shower arm, and an output chamber from which water may be discharged to the shower head. The housing is secured at its bottom end to the base and has a first port communicating with the base input chamber and a second port communicating with the base output chamber. A tube carries water from the housing first port to the top end of the housing, where it is diffused before passing down through the filter material and second port to the output chamber. A fragrant block is mounted to the base.

Abstract: A method of installing a filter unit includes aligning a filter unit into a filter head assembly. The filter unit includes a laterally extending key member and an engagement protrusion. The engagement protrusion includes a first portion that has a first radius of curvature and a second portion opposing the first portion that has a second radius of curvature larger than the first radius of curvature. The laterally extending key member is aligned into a key slot in the filter head assembly. An engagement surface is aligned on the filter unit into a complementary engagement surface on the filter head assembly. The filter unit is rotatingly inserted into the filter head assembly. The laterally extending key member shifts an interference member on the filter head assembly from an interference position, wherein the filter unit cannot sealingly engage the filter head assembly, to a non-interference position, wherein the filter unit can sealingly engage the filter head assembly.

Abstract: Baby bottles can have a single container, or two containers to create a space for thermal isolation, as selected by the user. The baby bottle can be vented to allow air to enter the bottle through a passageway as liquid is removed. A filter and one-way valve can be provided in the passageway. The passageway can be formed by radially aligning a vent opening in a top cap with a vent opening in a nipple flange, or by providing a channel in the top cap which is always in radial alignment with both the top cap vent opening and the flange vent opening.

Abstract: A filter may include ac over defining a chamber and an annular filter element arranged within the chamber. The filter may also include a housing and at least one intermediate piece arranged between the cover and the housing when the cover is screwed to the housing. An inlet duct may be in communication with an untreated side of the filter element and an outlet duct may be in communication with clean side of the filter side of the filter element and an outlet duct may be in communication with a clean side of the filter element. A drainage duct may be arranged in the housing for draining the chamber during removal of the cover. A closure device may be arranged in the intermediate piece and have a closure element configured to close the drainage duct.

Abstract: A filter module includes a filter element with a ring of media and an end cap at one end of the ring. The end cap includes an annular body with a sealing member located around a surface of the body circumscribing a central opening, wherein the sealing member has a repeating, undulating, non-planar geometry. The axial, distal end of the annular body also has an repeating, undulating non-planar geometry, matching the geometry of the sealing member, and can have one or more tabs projecting axially outward from the distal end, positioned at a point of maximum amplitude of the distal end, and which are received in cooperating slots formed in a socket of a diaphragm, to facilitate positioning and installing the element into the module. The socket includes an outer wall having a matching non-planar geometry which receives and seals against the sealing member on the end cap.

Abstract: A filter device for a water purifier including a filter unit having a flange having an inlet, an outlet, an optional discharge port, opposite engaging protrusions, and opposite engaging recesses; a connecting member fitted into the flange so as to be connected with the inlet, the outlet, and optional discharge port and having inner communicating passages so as to be connected with respective connecting holes, a cap member fitted around the flange to cover the connecting member and having on an outer circumference connecting ports communicating with the respective connecting holes, the cap member having opposite engaging holes corresponding to the engaging protrusions and opposite engaging grooves corresponding to the engaging recesses, and a fixing member engaging on an inner end with the engaging recess through the engaging groove.

Abstract: A filter (1) to purify the water distributed by a dispenser, fitted with a special sanitizing device incorporated therein. Inside of the said filter (1), below the water chamber (3), is a disinfectant chamber (4) that contains the solution designed to sanitize the said dispenser. A mechanism causes the sanitizing solution to flow into the water chamber (3) of the filter (1) and into the piping, for performing the subsequent sanitizing action.

Abstract: A filter assembly includes a disposable filter body and a central support for the disposable filter body. Openings are provided in upper and lower ends of the disposable filter body for receiving a respective end of the central support. The filter assembly also includes a disposable filter cartridge, housed within the disposable filter body, and housing a filter member for filtering particulate contaminates from a flow of fluid through the filter assembly. The filter member is hollow and the disposable filter cartridge also includes an impermeable wall that extends axially through the filter member. The central support is separable from the disposable filter body and removable from the openings to allow disposal and replacement of the filter body and the filter cartridge during servicing.

Abstract: A circular filtering disc and a filter device having the filtering disc. The filtering disc includes a circular partition plate having an inner hub and an outer rim, with radial inlet holes formed in the outer rim and introducing water to the partition plate, and a vertical outlet hole formed in the center of the inner hub and discharging pure water; and a filter fabric placed on or below the partition plate, wherein water supplied to the filtering disc passes through the filter fabric and becomes concentrated at the vertical outlet hole, and is discharged from the filtering disc through the vertical outlet hole. In the filter device, raw water is supplied through the circumferential edges of the circular filtering discs stacked on top of one another in the filter device and is filtered prior to being discharged from the filter device through the center of the filtering discs.

Abstract: A filter (18) is fastened by means of a releasable detent connection (20) in a fastening housing part (14). One detent component (32) is connected to the filter element (18) and one detent component (36) is connected to the fastening housing part (14). At least one detent means (32) of one of the detent components engages in a bayonet-like manner in a cut-out (38) in the other detent component (36). One switching component (60) of a switching device (58) is connected to the filter element (18) and one switching component (62) is connected to the fastening housing part (14). One of the switching components (60) includes at least one switching lug (76) extending radially to a rotational/plug-in axis (30) of the filter (10), and one of the switching components (62) includes a switching slot (78) for guiding the switching lug (76).

Abstract: A blood processing filter including a flexible container (having an inlet and an outlet and a sheet-like filter member that is assembled in the flexible container) has a seal part that seals the flexible container and the filter member to form an effective filtration portion of the filter member and a partition part that seals the flexible container and the filter member to partition the effective filtration portion into a plurality of areas. The seal part and the partition part cooperate with the filter member to divide inside of the flexible container into three or more internal spaces including an inlet space that communicates with the inlet, and an outlet space that communicates with the outlet, and also form, as a blood channel, a channel that passes through each of three or more of the internal spaces and also passes multiple times through the filter member.

Abstract: The invention relates to a filter device having at least one filter element (11) comprising a filter medium (27) disposed between two receiving parts (31, 35) and a connecting device located at the lower receiving part (35) for a fluid connection to a fluid device, in particular to a fluid tank (1), having a connecting part (45) disposed on the connecting device, said connecting part being pretensioned by the action of a first energy store (43) for a motion away from the upper receiving part (31) into a closed position blocking the connecting device, having a further, second energy store (49) for generating a relative motion between the lower receiving part (35) and a closing-off part (17) of the device, and having a sealing device (55) sealing between the lower receiving part (35) and the closing-off part (17) as soon as said part and the lower receiving part (35) make contact with each other under the influence of the second energy store (49).

Abstract: A water filter system includes a removable filter unit having a body portion including a proximal end and a distal end. The proximal end is adapted to be inserted into a filter head assembly. A laterally extending key member is disposed on the body portion and adapted to engage a key slot in the filter head assembly. An engagement protrusion extends from the proximal end. The engagement protrusion includes a first portion that has a first radius of curvature and a second portion opposing the first portion that includes a second radius of curvature that is larger than the first radius of curvature.

Abstract: A filter element for a liquid filter is arranged in the liquid filter housing that has at least two housing parts such that an inlet of the housing for liquid to be filtered is separated from an outlet of the housing for filtered liquid. The filter element has a filter medium provided with a terminal disk. The terminal disk has a seal support for an outer radial annular seal that is to be clamped in a clamping area between the housing parts that are separable from each other. The seal support of the filter element has axially at least a base member and a cover member. The base member is fixedly connected to the terminal disk. The cover member is attached to the terminal disk, to the base member, or to terminal disk and base member. The annular seal is positioned between base member and cover member.

Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. Unique features for interface between the enclosed filter cartridge and the shell are provided. Also provided are unique features for interaction between the cartridge and a filter head, in use.

Abstract: A filter system for filtering fluids has a housing, an inlet, and an outlet. A filter element is arranged inside the housing. A cover closes the housing and provides access to the filter element inside the housing. A securing device prevents the housing from being closed by the cover when the filter element is missing. The filter element has at least one filter element guide path section. The housing or the cover has a rim area with at least one rim guide path section. The filter element guide path section and the rim guide path section supplement one another to a guide path. The securing device comprises at least one securing element arranged on the cover or the housing. The securing element is guided on the guide path when a closing movement is carried out for closing the housing by the cover.

Abstract: The invention concerns a filter element (1), in particular of a fuel filter for motor vehicles. The filter element (1) is received in a filter housing (2) and comprises a filter body (3) with a filter material (5) that is arranged in folds (4). Between two folds (4) a heater installation space is provided and configured to receive a heating element (6) for the fuel.

Abstract: A filter assembly includes a head, a filter housing which can be connected to the head, and a filter element which can be received in the filter housing. The filter element includes a tubular wall provided with a filtration medium; a first end part provided at a first axial end of the filter element; and a second end part provided at a second axial end of the filter element. The second end part of the filter element is provided with a either a protrusion or an undercut opening, on the one hand, and the second end of the housing is provided with either an undercut opening or a protrusion, on the other hand. A side of the protrusion or opening is provided with a sloping face which slopes at a slope with respect to the axial direction of the filter element.

Abstract: A device for supporting and fixing a water filter in connection with an oven having a chassis that includes: a housing for receiving the water filter that attaches to the bottom surface with a chassis of the oven; a protective plate that attached to the front wall of the housing; and a cover plate that hides the protective plate and the water filter to keep the set built-in.

Abstract: A filter element for a liquid filter, especially a fuel filter, having an annular, rotationally symmetrical filter medium closed on at least one axial end by an end disk to sealingly separate an exterior space surrounding the the filter medium from an interior space inside the filter medium, with a connecting opening provided in the end disk such that the opening is arranged eccentrically of the axis of the filter medium, and a filter system in which such a filter element is disposed.

Abstract: A filter element of a filter system for filtering fluids has a filter medium with end faces. Terminal bodies, one each, are connected to one of the end faces of the filter medium, respectively. A support body extends between the terminal bodies. A first terminal body is connected by a toothed connection to the support body for transmitting a torque from the first terminal body onto the support body and from the support body onto the first terminal body.

Abstract: A replaceable filter has a filter housing with a cylindrical connecting end. A housing lid has a cylindrical counter connecting member matching the cylindrical connecting end. A filter closure system seal-tightly connects by form fit the cylindrical connecting end and the cylindrical counter connecting member when the connecting end is inserted or pushed onto the counter connecting member in an axial connecting direction and moved relative to the counter connecting member. An annular member is arranged coaxially relative to the connecting end and has a terminal edge area that is connected seal-tightly to the filter housing such that the annular member and the connecting end define a receptacle for the cylindrical counter connecting member. A sealing device is arranged in the receptacle and connected to the filter housing. The sealing device interacts with the counter connecting member.